Basic Units of Mass
Estimating & Measuring
Measurement Tools
Reading Measurements
Real-World Problems
100

What is the basic unit of mass in the metric system?

What is a gram?

100

If you have a bag of apples and it feels heavy, would you use grams or kilograms to measure it?


What is kilograms?


100

What tool would you use to measure the mass of a watermelon?


What is a digital scale?

100

How do you read a digital scale that shows 1250 grams?


 What is 1250 grams or 1.25 kilograms?

100

If you have a bag that weighs 2 kilograms and you add another bag weighing 1.5 kilograms, what is the total weight?


 What is 3.5 kilograms?



200

What unit is larger, a kilogram or a gram?

What is a kilogram?

200

How can you estimate the mass of a book?


What is by comparing it to objects with known mass or using a scale?

200

Name a tool that measures mass in the kitchen.


 What is a kitchen scale?

200

If a scale shows 2.5 kilograms, what is the mass in grams?


What is 2500 grams?

200

 A watermelon weighs 5 kilograms. If you cut it into 5 equal pieces, how much does each piece weigh?


 What is 1 kilogram?

300

How many grams are there in a kilogram?


What is 1000 grams?

300

What would you use to measure the mass of a pencil?


 What is a gram scale?

300

What is a balance scale used for?


 What is to compare the mass of two objects?

300

If your scale shows 0.75 kilograms, how many grams is that?


 What is 750 grams?

300

You need to buy 10 kilograms of rice. If each bag contains 2 kilograms, how many bags do you need?


 What is 5 bags?

400

What is the unit of mass used to measure very large objects like a truck?


What is a tonne?

400

If a box is very heavy, would you measure it in grams or tonnes?


 What is tonnes?

400

After watching a video on measuring mass, which tool would you use to measure the mass of a small toy?


 What is a gram scale or balance scale?

400

 What would you do if the measurement on the scale isn’t clear?


 What is to recalibrate the scale or check if it is zeroed out?



400

You have a crate that weighs 3 tonnes. If you want to find out its weight in kilograms, what would it be?


 What is 3000 kilograms?



500

Name the unit of mass used in cooking recipes.


What is a cup or tablespoon (if measuring mass) or gram?

500

$500: Why is it important to estimate the mass of an object before measuring it?


 What is to choose the correct measurement tool?

500

If you need to measure a large quantity of flour, which tool would you choose?


What is a kitchen scale or a weighing machine?

500

 How do you record a measurement of 3.2 kilograms?


What is writing it as 3200 grams or 3.2 kg?


500

If a car weighs 1.2 tonnes and you have two such cars, what is their total mass in kilograms?


 What is 2400 kilograms?